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답안 #494571

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
494571 2021-12-15T18:24:18 Z truongxuan_dh Toll (BOI17_toll) C++14
100 / 100
 133 ms 86772 KB 
#include <bits/stdc++.h>
using namespace std;

int k, n, m, o;
int dp[50000][17][5][5], ans[5][5], tmp[5][5];

void combine(int target[5][5], int a[5][5], int b[5][5]) {
	for (int x = 0; x < k; x++) {
		for (int y = 0; y < k; y++) {
			for (int z = 0; z < k; z++) {
				target[x][y] = min(target[x][y], a[x][z] + b[z][y]);
			}
		}
	}
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> k >> n >> m >> o;
	memset(dp, 0x3f, sizeof dp);
	while (m--) {
		int a, b, t;
		cin >> a >> b >> t;
		dp[a / k][0][a % k][b % k] = t;
	}
	for (int j = 1; j < 17; j++) {
		for (int i = 0; i + (1 << j) < (n + k - 1) / k; i++) {
			combine(dp[i][j], dp[i][j - 1], dp[i + (1 << j - 1)][j - 1]);
		}
	}

	while (o--) {
		int a, b;
		cin >> a >> b;
		memset(ans, 0x3f, sizeof ans);
		for (int i = 0; i < 5; i++) ans[i][i] = 0;
		for (int curr = a / k, dest = b / k, i = 16; ~i; i--) {
			if (curr + (1 << i) <= dest) {
				memset(tmp, 0x3f, sizeof tmp);
				combine(tmp, ans, dp[curr][i]);
				memcpy(ans, tmp, sizeof ans);
				curr += (1 << i);
			}
		}
		cout << (ans[a % k][b % k] == 0x3f3f3f3f ? -1 : ans[a % k][b % k]) << '\n';
	}
	return 0;
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:29:51: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   29 |    combine(dp[i][j], dp[i][j - 1], dp[i + (1 << j - 1)][j - 1]);
      |                                                 ~~^~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 68 ms 84472 KB Output is correct
2 Correct 29 ms 83476 KB Output is correct
3 Correct 31 ms 83368 KB Output is correct
4 Correct 37 ms 83356 KB Output is correct
5 Correct 31 ms 83400 KB Output is correct
6 Correct 35 ms 83368 KB Output is correct
7 Correct 30 ms 83404 KB Output is correct
8 Correct 67 ms 84292 KB Output is correct
9 Correct 65 ms 84344 KB Output is correct
10 Correct 51 ms 83516 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 83 ms 85020 KB Output is correct
2 Correct 32 ms 83428 KB Output is correct
3 Correct 35 ms 83404 KB Output is correct
4 Correct 31 ms 83460 KB Output is correct
5 Correct 31 ms 83372 KB Output is correct
6 Correct 31 ms 83408 KB Output is correct
7 Correct 39 ms 83524 KB Output is correct
8 Correct 36 ms 83532 KB Output is correct
9 Correct 71 ms 84340 KB Output is correct
10 Correct 95 ms 85748 KB Output is correct
11 Correct 98 ms 85316 KB Output is correct
12 Correct 79 ms 84724 KB Output is correct
13 Correct 84 ms 85880 KB Output is correct
14 Correct 63 ms 84932 KB Output is correct
15 Correct 68 ms 84624 KB Output is correct
16 Correct 71 ms 84664 KB Output is correct

Subtask #3
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 83452 KB Output is correct
2 Correct 34 ms 83384 KB Output is correct
3 Correct 33 ms 83380 KB Output is correct
4 Correct 34 ms 83404 KB Output is correct
5 Correct 32 ms 83420 KB Output is correct
6 Correct 32 ms 83396 KB Output is correct
7 Correct 33 ms 83396 KB Output is correct
8 Correct 35 ms 83428 KB Output is correct
9 Correct 33 ms 83412 KB Output is correct
10 Correct 72 ms 84272 KB Output is correct
11 Correct 86 ms 84952 KB Output is correct
12 Correct 108 ms 85628 KB Output is correct
13 Correct 98 ms 85752 KB Output is correct
14 Correct 88 ms 85180 KB Output is correct
15 Correct 68 ms 84644 KB Output is correct
16 Correct 88 ms 84576 KB Output is correct

Subtask #4
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 83452 KB Output is correct
2 Correct 34 ms 83384 KB Output is correct
3 Correct 33 ms 83380 KB Output is correct
4 Correct 34 ms 83404 KB Output is correct
5 Correct 32 ms 83420 KB Output is correct
6 Correct 32 ms 83396 KB Output is correct
7 Correct 33 ms 83396 KB Output is correct
8 Correct 35 ms 83428 KB Output is correct
9 Correct 33 ms 83412 KB Output is correct
10 Correct 72 ms 84272 KB Output is correct
11 Correct 86 ms 84952 KB Output is correct
12 Correct 108 ms 85628 KB Output is correct
13 Correct 98 ms 85752 KB Output is correct
14 Correct 88 ms 85180 KB Output is correct
15 Correct 68 ms 84644 KB Output is correct
16 Correct 88 ms 84576 KB Output is correct
17 Correct 79 ms 84984 KB Output is correct
18 Correct 32 ms 83352 KB Output is correct
19 Correct 33 ms 83432 KB Output is correct
20 Correct 35 ms 83396 KB Output is correct
21 Correct 34 ms 83452 KB Output is correct
22 Correct 34 ms 83452 KB Output is correct
23 Correct 34 ms 83396 KB Output is correct
24 Correct 34 ms 83524 KB Output is correct
25 Correct 35 ms 83524 KB Output is correct
26 Correct 35 ms 83532 KB Output is correct
27 Correct 63 ms 84224 KB Output is correct
28 Correct 103 ms 85640 KB Output is correct
29 Correct 108 ms 86008 KB Output is correct
30 Correct 92 ms 85320 KB Output is correct

Subtask #5
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 68 ms 84472 KB Output is correct
2 Correct 29 ms 83476 KB Output is correct
3 Correct 31 ms 83368 KB Output is correct
4 Correct 37 ms 83356 KB Output is correct
5 Correct 31 ms 83400 KB Output is correct
6 Correct 35 ms 83368 KB Output is correct
7 Correct 30 ms 83404 KB Output is correct
8 Correct 67 ms 84292 KB Output is correct
9 Correct 65 ms 84344 KB Output is correct
10 Correct 51 ms 83516 KB Output is correct
11 Correct 83 ms 85020 KB Output is correct
12 Correct 32 ms 83428 KB Output is correct
13 Correct 35 ms 83404 KB Output is correct
14 Correct 31 ms 83460 KB Output is correct
15 Correct 31 ms 83372 KB Output is correct
16 Correct 31 ms 83408 KB Output is correct
17 Correct 39 ms 83524 KB Output is correct
18 Correct 36 ms 83532 KB Output is correct
19 Correct 71 ms 84340 KB Output is correct
20 Correct 95 ms 85748 KB Output is correct
21 Correct 98 ms 85316 KB Output is correct
22 Correct 79 ms 84724 KB Output is correct
23 Correct 84 ms 85880 KB Output is correct
24 Correct 63 ms 84932 KB Output is correct
25 Correct 68 ms 84624 KB Output is correct
26 Correct 71 ms 84664 KB Output is correct
27 Correct 32 ms 83452 KB Output is correct
28 Correct 34 ms 83384 KB Output is correct
29 Correct 33 ms 83380 KB Output is correct
30 Correct 34 ms 83404 KB Output is correct
31 Correct 32 ms 83420 KB Output is correct
32 Correct 32 ms 83396 KB Output is correct
33 Correct 33 ms 83396 KB Output is correct
34 Correct 35 ms 83428 KB Output is correct
35 Correct 33 ms 83412 KB Output is correct
36 Correct 72 ms 84272 KB Output is correct
37 Correct 86 ms 84952 KB Output is correct
38 Correct 108 ms 85628 KB Output is correct
39 Correct 98 ms 85752 KB Output is correct
40 Correct 88 ms 85180 KB Output is correct
41 Correct 68 ms 84644 KB Output is correct
42 Correct 88 ms 84576 KB Output is correct
43 Correct 79 ms 84984 KB Output is correct
44 Correct 32 ms 83352 KB Output is correct
45 Correct 33 ms 83432 KB Output is correct
46 Correct 35 ms 83396 KB Output is correct
47 Correct 34 ms 83452 KB Output is correct
48 Correct 34 ms 83452 KB Output is correct
49 Correct 34 ms 83396 KB Output is correct
50 Correct 34 ms 83524 KB Output is correct
51 Correct 35 ms 83524 KB Output is correct
52 Correct 35 ms 83532 KB Output is correct
53 Correct 63 ms 84224 KB Output is correct
54 Correct 103 ms 85640 KB Output is correct
55 Correct 108 ms 86008 KB Output is correct
56 Correct 92 ms 85320 KB Output is correct
57 Correct 133 ms 86772 KB Output is correct
58 Correct 75 ms 84468 KB Output is correct
59 Correct 85 ms 85188 KB Output is correct